Closure construction for wall openings



Jan. 12, 1954 A LQBL 2,665,782

CLOSURE CONSTRUCTION FOR WALL OPENINGS Filed June 25, 1951 Fig. 2 33 Patented Jan. 12, 1954 OFFICE CLOSURE CONSTRUCTION FOR WALL OPENINGS Arnold Liibl, Vienna, Austria Application June 25, 1951, Serial No. 233,333

Claims priority, application Austria June 28, 1950 3 Claims. (Cl. 189-65) This invention relates to a closure construction for a wall opening, in particular for airtight windows and doors made from metal or plastics.

Window and door constructions are known in which metal frames are used. The latter are composed of two or several sheet metal sections to form a box section having flanged edges or flanges protruding from the longitudinal edges. Such metal frames have been used in making window frames, door frames, and casement frames, the glass panes lying on the flanges being imbedded in putty.

In all these constructions the flanges employed for bearing the panes extend parallel to the plane of the pane and into the viewing opening of the window. This results on the one hand in an unfavorable stress distribution on the casement frame, and on the other hand in an unpleasant appearance of the window to a person looking therethrough. Moreover, it was impossible to provide for an effective seal between the casement frame and the window frame for lack of suitable sealing elements.

This invention provides a construction for clos-- ing a wall opening, such as a window or door, made from metal or plastics, in which construction at least the casement frame is of box section having at least one flange protruding as an extension of one side wall from a longitudinal edge transversely to the plane of the panel or pane. Moreover, resiliently deformable sealing elements, serving at the same time also for hold ing and sealing the panels or glass panes, are

provided between at least one end wall of thecasement frame section and other parts of the frame of the window or door construction. These sealing elements are detachably arranged in a corner formed by the flange and the respective end wall of the easement frame.

Owing to the use of a box section having a flange protruding transversely to the plane of the panel or pane, it is possible to support the panes indirectly in the end walls of the casement frame. Moreover, a good seal of the casement frame on the window or door frame is accomplished by resilient elements arranged on the corner formed by the flangeand the end wall. These sealing elements at the same time sealingly hold the panes and owing to their being mounted flush with theinner wall of the frame ensure an unhindered view through the window. Where such sealing elements are provided for the outer and inner panes on both end walls of the frame, a favorable distribution of the sealing pressure results, this pressure being diis particularly suitable for such frames.

rected at right angles to the plane of the panes transversely through the casement frame.

The drawing illustrates an embodiment of the invented construction as applied to a one-wing casement window, which is shown in Fig. 1 is a horizontal sectional fragmentary View.

Fig. 2 is an enlarged cross sectional view of a detail showing a particularly advantageous form of a rubber strip and the method of fixing the same to the casement frame.

In the window shown in Fig. 1, the window frame and the casement frame consist of metal frames. For reasons of strength a box section This box section is readily assembled from several, e. g., two section rails. Hence the window frame comprises two angular sheet metal rails I, 2, the outer rail] of which has side walls 3, 4 with a flange 1 bent at right angles, whereas the side walls 5, 6 of the inner rail 2 include an obtuse angle and the side wall 6 has a laterally bent flange 8. The flanges 1, 8 are rigidly connected, e. g., spot welded, to the side walls 4, 5, respectively. This assembly results in flanges 1, B protruding at two longitudinal edges of the box section, the flange 8 serving as a stop ledge for the casement frame. Hinge pins 9 are affixed in front of the end wall 5.

The casement frame, also of box section, comprises a sheet metal rail ID of channel section, the end walls ll, [2 of which have outwardly bent margins l3, H. A metal strip 15 is rigidly connected to these edges. Its inclination corresponds to that of the side wall 6 of the window frame I, 2. In this construction of the frames I, 2 three walls of each frame section are at right angles to each other whereas the fourth wall of the easement frame section substantially defines the shape of a truncated pyramid fitting into the truncated hollow pyramid formed by the window frame. At the oblique side wall [5 of a vertical frame part at least two hinge straps I6 are rigidly affixed, the eyes 11 of which coact with the hinge pins 9.

For retaining the glass panes in position, rubber strips are employed to ensure a resilientmounting and to avoid stresses being set up in the glass. The rubber strip 20 retaining the outer window pane I8 in a groove I9 is mounted on the end wall l2 and is afiixed to the flange formed by the side margin [4. To this end acorner 2| is recessed in the strip 20 and anchoring elements such as screws alone or cleats engage with this corner. It has been found of The inner window pane 25 is carried by arub- .ber strip 24 of similar cross section, which is affixed to an angle frame 26. This frame 26 is also pivoted by means of bearing eyes 21 on the hinge pins 9. Cover strips 28 affixedto the frame 26 provide for a smooth internal view of the window and also cover the hinges and the locking mechanism. The rubber strip .24 may be retained on the angle frame 24 similarly as the rubber strip 29.

When the window is closed the rubber striplfl bears with slight pressure on the end wall H, and the strip it bears on the end wall 12 of the casement frame. Moreover, the strip 20 is pressed against the stop ledge 8 of the window frame. BecausetheWa-ll's'll,1 2 of the window frame and the stop ledge' 8 are parallel, all "sealing faces of therubber strips-also extend in parallel planes. Moreover, the directions in which the sealing faces are pressed against each other at rightangles to the panes coincide to provide for a good seal and for favorable mechanical stress conditions in the elements of the window construction.

The lockingmechanism is provided on the vertical part of the-casement frame opposite to the hinges. In brackets 29 fiixed to the flat metal strip l5, the rotary handle 3! with the pusher-crank mechanism known per se and the locking-bars are mounted. The ends of the locking bars (not-shown) are slidable into associated recesses in the corners of the window frame.

Fig; 2 illustrates a particularly advantageous cross sectional shape of a rubber strip 3!. As described hereinbef'orethe strip comprises the groove ill for theglass pane andthe corner 2| with the wooden rod 2-2 therein. To provide for sufficent but not excessive sealing pressure, a longitudinal incision 32 is provided in the part of the rubber strip iii-engagement with the stop ledge 8, the thus formed lug 33 providing a particularly soft and resilient buffer. In its original condition this lug may be shaped so that its free side edge 34 slightly overlaps'the wooden cleat'22 when the window is closed.

The box section of the window and door frame of the invented closure construction may be filled with a plasticor thermoplastic mass, e. g., with cement, whether with or without reinforcements, or with-synthetic resin, or the like. This measure leads to an increase in the-torsional, bending and bulging strengths. The frame parts may be made from iron (steel), or light metal, such as Dural, or from a plastics material.

What I claimfis '1. A closure construction for a wall opening comprisingan outer frame, a casementframe of box section mounted in said outer frame and having an outer end wall and aninner-end wall, said outer frame having a -flange adjacent to and spaced from said outer end wall, resilient sealing strips provided between said outer end-wall and said flange and adapted to seal said outer end wall against said-flange, a panel held in said casement frame by said sealing strips between 4 said outer end wall and said flange, an inner frame mounted in said outer frame adjacent to and spaced from said inner end wall, resilient sealing strips provided between said inner end wall and said inner frame and adapted to seal saidinnerlend wall againstlsaid'inner frame, and a panel held in said inner frame by said sealing strips between said inner end wall and said inner z frame.

,2. Aclosure construction for a wall opening,

comprising an outer frame, a casement frame of box section having a side wall, an outer end wall and .an inner end wall, an outer panel in said casementframasaid side wall having two flange extensions protruding transversely to the plane ofztheouter panel, each of said flange extensions :forming a corner with one of said end walls, an angle frame member mounted to said outer frame adjacentto and spaced from said inner end wall, said casement frame and angle frame being movable relative to said outer -frame, said outer frame c'omprising' a stop flange in thepath-o'f said outer end wall'toli-mit the movement of said casement frame, an inner panel in said angle frame, and resiliently deformable sealing strips seated in each 'of'said corners and comprising outer strips afiixed to said casementframe betweensaid outer end wall and said stop flange and adapted to sealinglyengage with the latter, and inner strips affixed to said anglefra-me and facing said'inner end wall. and adapted to sealingly engage with the latter, said outer and inner-panels being held in-position and sealed against said casementand angle frames by saidouter and inner strips, respectively.

3. A closure construction for a wall opening, comprising an outer frame, a casement frame of box section having a side wall; an outer end wall and an inner end wall, an outer panel in said'casement frame, said sidewall having a flange extension protruding transversely to the plane of the outer panel and forming a corner with the outer end wall, an angle frame member mounted to said outer frame adjacent to and spaced from said inner end' wall, said casement frame and angle'frarne being movable :relativeto said outer frame, said outer framacomprising a stop flange in the path of said outer-end wall to limit the movement of said casement frame, an inner panel in-said angle-frame, and resiliently deformable sealing strips comprising outer strips seated in said-corner and affixed to said casement frame between-said outer end wall and said stop flange and adapted to sealingly engage with the latter, and inner strips affixed to said angle frame and facingsaid inner end wall and adapted to sealingly engage with the latter, said outer and inner panels being 'held in position and sealed against said casement and angle frames by said outer and inner strips,-respectively.

ARNOLD Loan References (lite-din the file of this patent ,UNITED, SZ[ATES PATENTS Number Name Date 1,848,653 "Spink Mar. 8, ,1932 1,999,208 Peremi et al "Apr. 30, 1935 2,162,463 Schunk June 13, 1939; 2,269,506 Andersson ,Jan. 13,1942- 

